Complete the sentences below with the correct form of the verbs in brackets .
I (walk) down the road when I (see) a young man in front of me . He (look) at a flower. He was so absorbed in what he (do) that he (not notice) me .
There was something strange about him , judging from the way he (move) his head and from the clothes he (wear).
While he (collect) some flower seeds I (take) his photo . It was obvious that he didn't expect it. By the way he (look) at me I (understand) he was an alien . It was a bit of a shock for me. I couldn't move or shout for help . (...)
Then I (notice) his friendly...